Accumulator container in expansion coils



Jan. 20, 1931. J. G. PECK 1,789,389

ACCUIIULATOR CONTAINER IN EXPANSION OOILS Filed Dec. 23, 1.925 2 Shoots-Sheet 1 wit ' l fi2%?$5f I Yf 7 J M 4 3 3 l2 2 la 5 o 1 v .I s 1 7 /2 *5 a 5 0 i a i F l 4 i l 2 I ii a &

inns/1701" dacab 6. Pea/r Jan. 20, 1931. J. G. PECK .789.3

ACCUIIULATOR CONTQINER 5N EXPANSION GOILS Filed Dec; 23, 1925 2 Shoots-Shut 2 v mrwzzf d ab 6.- Pe k.

- frigerating and cooling cabinet,;filed August.

Patented an. 20,1931

wer g moon e. 21:01:, or ronjrmnnjonneou I aooumunnron'oonrnnvnn m? nxrAnsIo'N' ooIL-s 1 Application filedillecember .23} 1925;. s riaiu fraaaa j This invention relates" to my pending -plications-in the United States Patentoihce,

. as evidenced by the following:

Ice creamcabinetl and means forfai-utomati- I eally maintaining more than one temperature n thereinsimultaneously, filed January 9, 1925, j

I Serial No ..35,996.

filed August 5, 1925, Serial No. 48,376. i,

Newand improved tWot-emperature re- 5, 1925, Serial No. 148,377.

c Process for, GlI'ClllllJlIig a refrigerantv 7 liquid refrigerant material may'. be: trapped within the accumulatorsthus preventinglthe 7 same from being returned, back tothe refrigerating machine, as' a liquid. w I

- Further objects. of my present invention consists in plaoingthe aocumu latorcontainers n sucha posit on w1th1n the circu t o-flthe] refrigerating expansion coil that the accumulator containers will act as traps for the trap ments.

Still further objects of my present invention consist in the placing of the accumulator containers in position within theins'ulation in order that the temperature of the refrigerant material within the accumulator containers will bemaintained atthe minimum 'temperature. Z a v The accumulatorcontainers 'act as a surplus storage supply rfor the refrigerant material, and as the normal requirement: lie-' comes depleted from leakage orother causes. Within the expansion coils, the surplus within the accumulator containers 'willexpand and be used, thus acting in efiect asautomatic'feeding of the surplus refrigerant, for

in a. two temperature cabinet, filed August 5,1925, Serial No. 48,374. M i

.. j Fig, 2 a "perspective view 1 v the cooling ping of foreignsubstances that may get into I the stream flow of the refrigerant and be carried into the valves, or into the machine, su 'ch foreign substances consist of scale,'or sedimental deposits, oil, Waterand other ele- I i the side walls thereof. The opposite walls use as a refrigerating medium, back into the expansion coils as an active agent. 1

1 W'ith theseand incidental objects in View,

{the invention consists incertain novel features of construction and combination of parts, the essential elements of WhICh'a -IG set a p s a I j forth in the appended c1aims,fand a pre- Refrigerator for two temperature cabinet,

ferr ed form-of embodiment of which; is hereinafter shownwith reference to the drawings which accompany and vform a part of thi's'specificationQ Fig.--1 is a top plan view partiallyin sectionof one of my new and improved two temperature cabinets, illustrating the nlo'cae 'tionof; the containers forthe'liquid and innsi [trating' the same position within the two temperature ,cabiniet withm the I, insulation and entirely surrounded by the insulation material.

system, as used infm y'two temperature cab inet, illustratingQthe containers to be used and'the location of the .same. f

Fig.8 is a cross section view, taken {on line 3 3, of Fig. 1, looking in: the direction indicated, a

Like eference characters :refer to like parts throughout the several views.

1 is the-cabinet case, having lidsor closures 2'p rovide'dfor each of two compare, Y

ments formed therein which are shown at 4:

and 5; and: which'c'ompartments are to' be maintained at unequal temperatures; These compartmentslhave tanks 6 and 7 forming of the tanks are spaced apart sufficiently to allow the passage of an expansioncoil therebetween. These tanks are 'made sufliciently large to hold a cooling medium, such as partment and the tanks from the exterior; Figs; 1 andf3 partly show how the insulat-' ing material and its disposal about the tanks. However, the construction of the cabinet does not necessarily have to be limited to that shown, as my invention is ap- 7 'plioable to" other forms" of cabinets,- and in describing my invention 'I-use the cabinet 5 and expansion coil construction here'shown as apreferred construction.

In the expanslon 0011 construction shown I in Fig. 2 of the drawings, the inlet or expansion end of the coil-is shown at 8. The single system of the coil expansion comprises the coil leading from the expansion valve not shown) the accumulator ,9 which it enters, the coilage that leads -from the accumulator and enters the tank 6' making a turn within the tank as shown le l(la',mnd then passes between the insulation making two more turns, and then' 'down to theilowest'part of tank 7 as shown at'll. Atthis point the single system 'ends-' "an'd' the-com pound system begins. The coil is thenwound upwardly until it reachesfthe top of vtank 7. The coil then leads into accumulaheretofore shown as wants in othertypes there ,is -a constant drain ,or leakage of the refrigerant {material used therein, 2 which erequires ,frequentrechar'ging of the Ldevice, I

have found in anfautomatic controlled machine that when the .machine. .has been freshlyv charged with refrigerant, material, that a steadier temperature is ,maintained than when the machine. has Zbeen operating over a period otftime, and there has been a jdrainvor lossof the refrigerant material. I'have also found that if the iactu-alrcharge of refrigerant ;,n1aterial requiredto run the 7 machine .be increased for an instance, ,to at tion ,to, the .actual amount equired to irun the machine, that an irregular or uneven and that the temperature will 5 be almostconstant. I

least two-to three times the normal amount required, or,- in other -words, ,if areserve supply of refrigerant as supplied in (addirunning ofthe machine will lee-:obviated, maintained In IF'ig. 2, '9 and 12.1epresent 'myaccumulater-containers or-reserve retrigeranttanks.

- Thesstructure of these twotank's'is the same, and each consists-o1 a cylindricalcontainer in orsurrounded by insulating anaterial, as

closed at-each end. Each-containeris mounted vertically, and is preferably positioned shown in Figs. 1, and 3. The expansion coil communicateswith each of these tanks at diametrically opposite points adjacent the top thereof. I have hereshowntwo tanks, 9 and 12, though Ijhave had excellent results when I have used but one tank,the tank- 9.

As will be seen by referenceto Fig. 2, the

tank 9 communicates with the expansion at a point near the expansion end of the same. The tank 12 communicates with the expansion coil at a point near the compression end of the same, and I have here shown it-connectedto the coil as it passes from. the compa-rtment 5 to its final turn about compartment 4 prior to gassing to the compressor. Thave describe in the last paragraph the istructureiroftwhat I have termed accumulator containers. I have found that in a -.re'frigerating idevice 0f the characterv described whichis ordinarily charged with one material, such as methol-chloride; but+a device of'thesame ,character'provided with ,my

accumulator containers, maybe charged with from tomato four and vone=halt pounds of refrigerant material; I This will allow a change of "from twoslto two and one-half pounds as'replacement of therefrigerant'material draining or leaking fromthe' machine over a .periodo'f time. .I-avish it toibe particularly understood that these containers do, not orlarenot intendefd to act as an extension to the expansion coilage ;;but are ,primarily intended aspockets oricontainers, communi- 1 eating with the coils, toho'ld a'surplus supply of the refrigerant material, ;I encase-thesen;

containers in insulating materiahas l Lhav ous-or abrupt changes of temperature,

I am aware that accumulators have herej'found that the-best results are obtained when the containers are {not subjected to continutofore been placed within' the expans'ion'c'oil of a refrigerating machine, but the same has beenplaced'therein for a different ,purpose and at'a difieren't location within the system.

While the'formof mechanism herein shown and described isfadmirably adapted to .fulfill the chi ejcts primarily. stated, f it. is.;to' be understood that it is vnot intended. .to' confine the'iinwentionto the 20118 eformlotemhodiimenthereinrshown, an.d.described,,as it issusceptihle of embodiment in various formS,-aall coming within'the scope of zthe claimsrwhich follow. 1 1 7 What I claim is 1. A device of the character described foran expansion 'coil iembodrying a single and a compound series 'oficonvolutionscomprising a container communicating with said coil in advance of the first stage of the compound convolution saidcontainerhaving diametri 'cally oppositep'ortions of its side walladjacent its upper end communicating withisaid coil; and saidcylinder being adapted to complement the refrigerant ca'pacityot said 0011..

2. A device otthe characterdescribed'ifor an expansion coil embodying a singleand a compound seriesof convolutions comprising a container communicating ,with saidi.coilj in advance'of the first stage of the compound convolution; a second cylindrical container communicating with said coil as it passes from the single series ofits convolutions'to the second stage of the compound convolutions; and said cylinders being adapted to complement the refrigerant capacity of said coil. I JACOB G. PECK.' 

